Mowing-machine.



C. LURENSON.

IVIOWING MACHINE.

APPLlcAxpN FILED Nov. 2o, 1913.

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THE NORRIS PETERS CO4, PHajc-LITHQ. WASHINGTON, D. A

C. LORENSON.

MOWING MACHINE.

APPLICATION FILED Nov. 2o, 1913.

LMw; Patented May18,1915.

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THE MORRIS PETERS Co.. PHOTO-LITHO., WASHINGTDN, D. C,

C. LORENSON.

MOWING MACHINE.

APPLICATION FILED Nov. 2o, 191s.

191.4@911750 Patented May 18, 1915.

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WITNESSES M Ico Ww THE NORRIS PETERS CO., FHCWU-LITMO. WASHINGTUN` D. C.

TUNlfTFlD STATES PATENT OFFE.

CARL LORENSON, OF DAVENPORT, IOWA.

MOWING-MACHINE.

nieuwe.

Application filed November 20, 1913.

T0 @ZZ whom t may concern.'

Be it known that I, CARL LonENsoN, a citizen of the United States, and aresident of Davenport, in the county of Scott and State of iowa, haveinvented a new and Improved Meeting-Machine, of which the following is afull, clear, and exact description.

This invention relates to mowing inacliines, and may be said to compriseimprovements on the mower forming the subj ect-matter of my LettersPatent No. 886226, dated April 28, 1908.

Among the objects of this invention are to provide means within reach ofthe driver for raising the finger-bar and knife-bar and maintaining themraised, either horizontally or at an angle; to provide means for takingup the drag of the finger-bar; to provide draft connections between thedraft mechanism of the machine and the parts supporting the finger-barfrom the frame of the machine, whereby side-draft is obviated; toprovide means for protecting the pitman from tall grass being bentthereover; to provide a grass deiiector for directing grass awa-y fromthe shoe carrying the finger-bar to the knife-bar; to provide means forvarying the speed by means of sprocket Wheels of various sizes; and toprovide removable means for spacing the finger-bar an extraordinarydistance from the side of the machine, for special work.

The invention consists in the various novel constructions andarrangements for accomplishing these and other objects which will beapparent as the specification proceeds.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a plan view of the improved machine; Fig. 2 is afront view;Fig. 3 is a vertical transverse section through certain of the parts, onan enlarged scale; Fig. 4 is a view showing the one-way clutch between aground wheel and the hollow shaft adapted to be driven thereby; Fig. 5is a detail of an operating lever and the flexible connection securedthereto; and Fig. 6 is a sectional view on the line 6 6 in Fig. 3.

Referring to these views, the numeral 1 indicates any suitable form ofwheeled frame, provided with ground wheels 2.

3 is a shaft adapted to be driven by one of the ground wheels duringforward move- Specification of Letters Patent.

Patented May 18, 1915.

Serial No. 802,048.

ment only, by means of dogs 4 and teeth 5 (see Fig. 4) and 6 is aslidable clutch member and 7 its operating lever, for coupling anduncoupling a bevel gear 8 with reference to said shaft. The bevel gear 8is in mesh with another bevel gear 9, the latter being mounted on alongitudinal shaft 10, which carries a plurality of sprocket wheels 11of different sizes near its forward end, this last constituting one ofthe novel features of the present invention. From one or other of thesprocket wheels 11 passes a chain 12 to a sprocket wheel 13 on acrankshaft 14, which is hereinafter more fully described. Preferably achain tightener 15 is provided, as shown in Fig. 2.

The numeral 16, see Figs. 2 and 3, designates an upright guide member inwhich the crank-shaft 14 slides up and down. In its preferableconstruction, said guide member includes a shoe 17 and a pair of uprightguide standards 18 rising from the front and rear portions thereof.Journal blocks 19 are mounted slidably between the members of the pairsof standards, and by these blocks the crank-shaft 14 is directlycarried.

Mounted pivotally on the straight portion of the crank-shaft 14 is afinger-bar carrier 20, comprising preferably two arms 21 and a shoe Tothis carrier 20 is secured a finger-bar 23; and a pitman 24 connects thecrank-shaft 14 with the knife-bar 25.

The guide member 16 is adapted to be secured by a spacing member 28 to abrace 26 forming part of the wheeled frame; said brace 26 and a brace 27being preferably secured together and affording each other mutualsupport. In such case, the finger-bar is disposed much farther inwardthan shown in the drawings. The finger-bar may be spaced outward fromthe side of the machine, as for cutting hedges and ditches, byv

means of a spacing member 28, (see Fig. 2) which after the member 16 hasbeen disconnected from the brace 26, may be interposed between theseparts and secured thereto, acting in the nature of a splice orinterposed extension.

For raising the finger-bar and sustaining it at an angle orhorizontally, I provide individual operating levers 29 and 30. Fromthese levers extend raising connections, preferably, though notnecessarily, in the form of chains 31 and 32 (see Figs. 1 and 2), whichare secured respectively, to the arms 21 at the region of the crankshaft 14 and to a bracket 33 rising from thefinger-bar carrier 20 nearthe other end thereof. These chains 31 and 32 pass upward over a roller34, connecting a front and a rear standard 18; and thence the chain- 31passes around a roller 35 carried by the frame 1, while the chain 32passes under a roller 36 and is secured to the lower arm of the lever30, which is a bell-crank lever. The two standards 18 not connected bythe roller 34 are connected by a member, `as a rod 37, which is thusdisposed transversely over the pitman 24 and servesy as a guard toyprevent tall lgrass being bent thereover.

In order to guide grass away from 4the shoe 22 to the linger-bar 23, IIprovide a grass deflector 38, which isin the nature of a curved blade,secured to the front part of said shoe and extended laterally outwardand :backward in -a plane above the xiin-gerbar.

yFor purpose of compensating for the drag of the finger-bar 23, Iprovide a plate 39, which is interposed between a rear standard 18 andthe rear ,arm `21 of the Enger-'bar i carrier 20. This plate ispreferably secured to the standard 18, as -by bolts and nuts 40. Setscrews 41 are -extended through holes provided for adjustment in thestandard and bear against the rear face of the plate 39. Consequently,'by loosening the nuts 40 and by shifting the set screws 41, vthe plate39 can be adjusted to take 'up the drag of the bar.

The unbalanced drag of the machine, particularly whenthe cutter bar isin service, is compensated or equalized by the spreader bar 42 and theconnecting bar 45. The bar 45 is pivotally mounted upon av bracket plate49, as best shown in Fig. 2 of the drawings. The bracket plate 49 ismounted at the end of a loop 50, which is extended from the under sideof the pole 44. The spreader bar 42 is pivotally connected with the bar45 by means of a pivot bolt 43 and at a point on the bar 45 intermediatethe ends thereof, as seen bestin Fig. 1 of the drawings. The movement ofthe bolt 43 is limited by a slot 51 formed in a plate 52 mounted on theupper side of the pole 44, as best seen in 'opies of this patent may beobtained for forms of my several improvements in *particular language,it will be understood that the form of the parts may be varied and thatit is not essential that the parts be connected in all instances asspecifically described.

In conclusion, I would point out that the desirability of the use ofchains in my machine, is that they maybe readily lengthened andshortened, according to whether the extension member 28 is or is notused.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. In a mowingmachine, awheeled frame; an upright guide member carried by said frame;a crank-shaft vertically adjustable in said guide member; a finger-barcarrier 'pivoted on a straight portion of said crankshaft; a finger-bar;a knife-bar; a face plate carried by said guide member, between the sameand said ngerebar carrier; and means foradjusting said plate tocompensate Afor the drag of said finger-bar.

2. A mowing machine comprising a wheeled frame; a fingerfbar; asupporting member for said linger-bar, said member being secured to saidframe; and a spacing member between said supporting member and saidframe, for laterally adjusting said finger-bar to provide variousworking areas for said finger-bars.

Intestimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CARL LonENsoN.

ve .cents each, by addressing the (.)ommissonerY of Patents.

Washington, D. C.

